Proper noun
Agastya
(Hinduism) One of the Saptarishis (seven sages), a revered Vedic sage and the author of Agastya Samhita.
The little one named Agastya is now being badly missed by papa Hardik. Source: Internet
So he went to Agastya who imparted to him a Vishnu Stotra or hymn which he heard from Sheshanaga and asked him to go to the Gangotri and practice the hymn for one month. Source: Internet